Face mask



FIG. 1 is a front perspective view of a face mask showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, the opposite side view being a mirror image of that shown;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top plan view thereof. 

The ornamental design for a face mask, as shown and described. 